Centurion Tri Imperial 100 Mile: 1.25-Mile Swim, 84-Mile Bike, 15-Mile Run Metric 100K: 2Km Swim, 82Km Bike, 16Km Run Legionnaire Sprint 750m Swim, 20.3Km Bike, 5Km Run Venue: Stanborough Lakes, Hertfordshire Organiser: ActiveTrainingWorld Race Info: